Merge branch 'trunk' of https://github.com/mnemnion/StringUnits.jl in…

…to trunk

README.md

@@ -4,6 +4,7 @@
 [![Dev](https://img.shields.io/badge/docs-dev-blue.svg)](https://mnemnion.github.io/StringUnits.jl/dev/)
 [![Build Status](https://github.com/mnemnion/StringUnits.jl/actions/workflows/CI.yml/badge.svg?branch=trunk)](https://github.com/mnemnion/StringUnits.jl/actions/workflows/CI.yml?query=branch%3Atrunk)
 [![Aqua](https://raw.githubusercontent.com/JuliaTesting/Aqua.jl/master/badge.svg)](https://github.com/JuliaTesting/Aqua.jl)
+[![codecov](https://codecov.io/gh/mnemnion/StringUnits.jl/graph/badge.svg?token=BT3S8343RT)](https://codecov.io/gh/mnemnion/StringUnits.jl)
 
 **StringUnits.jl** is a package which provides units for indexing strings: by
 codeunit, by character, by grapheme, and by textwidth.
@@ -28,4 +29,4 @@ julia> str[2ch:5ch + 0gr]
 "λ🤔∅👨🏻\u200d🌾"
 ```
 
-For details, see the [documentation](https://mnemnion.github.io/StringUnits.jl/)
+For details, see the [documentation](https://mnemnion.github.io/StringUnits.jl/)